3) Ideally the spit should sizzle for at least 8-10(approx.) seconds before evaporating at the very least... Like sosidge said, the fact that it just dances oof the head means that the engine is WAY too hot!
4) Name a hobby that isn't expensive to the enthusiasts who participate in it regularly...
A friend of mine went from racing R/C cars, to racing Go Carts (Motorcycle engined, 6-speed carts)... Now which hobby is cheaper?
Seriously, if you are just beginning, give it some time... As you learn, I think you will come to appreciate and enjoy the hobby more. If after a while, you still seem frustrated, or you still feel that you are not getting what you thought you might out of the hobby, You might want to consider another hobby. That's what happened to my friend. After years of running R/C, he needed the thrill that racing a REAL car gave him... Of course, it doesn't bother him that he's spending more than 10 times as much racing carts now.